<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><DIV></DIV><DIV><BR><DIV><DIV>On Oct 30, 2007, at 10:50 AM, Virginia Pett wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"> <FONT face="Verdana, Helvetica, Arial"><SPAN style="font-size:12.0px">Eric,<BR> Yes, my ultimate goal is more complicated than the examples that I gave. I would like to find all the Lys residues in the structure that are less than 8 Å apart from each other. After several hours of frustration with the Selector Construction Panel, I decided to try a simpler question in order to test whether I was using the Workbench correctly and to test whether any information was being saved. <BR> <BR> I may not have understood your reply correctly. Here is what I tried just now. I selected all atoms NZ (@NZ). THEN I invoked the Selector Construction Panel. (In my previous experiments, the Construction Panel had been invoked before I made the selection in the main window.) Then I proceeded as before, in the Selector Construction Panel: Workbench, Load from current. The Status panel shows workbench content: Existing Selection. Then Workbench, Save, as All NZ atoms, for example. However, as before, when I go back to the main window, Select, Clear Selection and then Select All NZ atoms, there is nothing selected.<BR> <BR> Virginia<BR> <BR> <BR> <BR> <BR> On 10/25/07 7:56 PM, "Eric Pettersen" <<A href="mailto:pett@cgl.ucsf.edu">pett@cgl.ucsf.edu</A>> wrote:<BR> <BR> </SPAN></FONT><BLOCKQUOTE type="cite"><FONT face="Verdana, Helvetica, Arial"><SPAN style="font-size:12.0px">Hi Virginia,<BR> Perhaps you could describe what your ultimate goal here is -- there may be an easier way to achieve it than by constructing a custom selector.<BR> But in regards to your problem, for the purposes of selector construction the "Existing Selection" isn't what is selected at that instant -- it's what's selected at the time the selector is invoked from Chimera's Select menu. This allows you to build selectors that intersect the peptide backbone with the current selection for example.<BR> If you want to make a selector that simply holds what's currently selected, use the Name Selection... entry in Chimera's Select menu. That creates a selector under Named Selections in the Select menu, and will also be remembered in saved sessions.<BR> <BR> --Eric<BR> <BR> <BR> </SPAN></FONT><FONT size="6"><FONT face="Helvetica, Verdana, Arial"><SPAN style="font-size:24.0px"> </SPAN></FONT></FONT><FONT face="Helvetica, Verdana, Arial"><SPAN style="font-size:12.0px">Eric Pettersen<BR> </SPAN></FONT><SPAN style="font-size:12.0px"><FONT face="Verdana, Helvetica, Arial"> <BR> <BR> </FONT></SPAN><FONT size="6"><FONT face="Helvetica, Verdana, Arial"><SPAN style="font-size:24.0px"> </SPAN></FONT></FONT><FONT face="Helvetica, Verdana, Arial"><SPAN style="font-size:12.0px">UCSF Computer Graphics Lab<BR> </SPAN></FONT><SPAN style="font-size:12.0px"><FONT face="Verdana, Helvetica, Arial"> <BR> <BR> </FONT></SPAN><FONT size="6"><FONT face="Helvetica, Verdana, Arial"><SPAN style="font-size:24.0px"> </SPAN></FONT></FONT><FONT face="Helvetica, Verdana, Arial"><SPAN style="font-size:12.0px"><A href="mailto:pett@cgl.ucsfedu">pett@cgl.ucsfedu</A><BR> </SPAN></FONT><SPAN style="font-size:12.0px"><FONT face="Verdana, Helvetica, Arial"> <BR> <BR> </FONT></SPAN><FONT size="6"><FONT face="Helvetica, Verdana, Arial"><SPAN style="font-size:24.0px"> </SPAN></FONT></FONT><FONT face="Helvetica, Verdana, Arial"><SPAN style="font-size:12.0px"><A href="http://www.cgl.ucsf.edu">http://www.cgl.ucsf.edu</A><BR> </SPAN></FONT><SPAN style="font-size:12.0px"><FONT face="Verdana, Helvetica, Arial"> <BR> <BR> <BR> On Oct 25, 2007, at 2:22 PM, Virginia Pett wrote:<BR> <BR> </FONT></SPAN><BLOCKQUOTE type="cite"><SPAN style="font-size:12.0px"><FONT face="Verdana, Helvetica, Arial"> Hello,<BR> There is a difficulty with the Selector Construction Panel. I make a selection in the main window, such as chain A or atom @NZ. The Inspect Selection panel shows that I have made a selection. Then in the Selector Construction Panel: Workbench, Load from current. The Status panel shows workbench content: Existing Selection. Then Workbench, Save, as chain A, for example. However, when I go back to the main window, Select, Clear Selection and then Select, chain A, there is nothing selected.<BR> <BR> I downloaded the latest version of Chimera for Mac OS X a few days ago (chimera-1.2422-osx_x11.dmg). I’m running it on a PowerBook G4 with Mac OS X (10.4.10).<BR> Virginia<BR> _____________________________________________________ <BR> <BR> Virginia B. Pett<BR> Professor of Chemistry<BR> Department of Chemistry, The College of Wooster<BR> 943 College Mall, Wooster, OH 44691<BR> Telephone: 330-263-2114<BR> Fax: 330-263-2386<BR> <BR> <BR> _______________________________________________<BR> Chimera-users mailing list<BR> <A href="mailto:Chimera-users@cgl.ucsf.edu">Chimera-users@cgl.ucsf.edu</A><BR> <A href="http://www.cgl.ucsf.edu/mailman/listinfo/chimera-users">http://wwwcgl.ucsf.edu/mailman/listinfo/chimera-users</A><BR> <BR> </FONT></SPAN></BLOCKQUOTE><SPAN style="font-size:12.0px"><FONT face="Verdana, Helvetica, Arial"><BR> <BR> </FONT></SPAN></BLOCKQUOTE><SPAN style="font-size:12.0px"><FONT face="Verdana, Helvetica, Arial"><BR> <BR> _____________________________________________________ <BR> <BR> Virginia B. Pett<BR> Professor of Chemistry<BR> Department of Chemistry, The College of Wooster<BR> 943 College Mall, Wooster, OH 44691<BR> Telephone: 330-263-2114<BR> Fax: 330-263-2386<BR> <BR> </FONT></SPAN> </BLOCKQUOTE></DIV><BR></DIV></BODY></HTML>